MARK RALSTON/AFP/Getty Images
A cafeteria worker supervises lunches for school children at the Normandie Avenue Elementary School in South Central Los Angeles on December 2, 2010.
Childhood obesity rates have shot up over the last three decades. Today, about one in three kids is overweight or obese, putting them at higher risk for diabetes and other medical conditions.
But there are inklings of a trend reversal. Several cities, including Los Angeles, are reporting drops in obesity rates among kids.
New York Times reporter Sabrina Tavernise joins the show to help explain this drop in obesity rates.